#!/usr/bin/ruby

class Customer
    @@no_of_customers=0
        def initialize(id, name, addr)
            @cust_id=id
            @cust_name=name
            @cust_addr=addr
        end
        def display_details()
            puts "Customer id #@cust_id"
            puts "Customer name #@cust_name"
            puts "Customer address #@cust_addr"
        end
        def total_no_of_customers()
            @@no_of_customers += 1
            puts "Total number of customers: #@@no_of_customers"
        end
    end
 
    cust1=Customer.new("1", "John", "Wisdom Apartments, Ludhiya")
    cust2=Customer.new("2", "Poul", "New Empire road, Khandala")
    
    cust1.display_details()
    cust1.total_no_of_customers()
    cust2.display_details()
    cust2.total_no_of_customers()